Whats the use of saying <? extends SomeObject> instead of

Question

So I was looking over some Java code and stumbled upon:

List l;

basically this list accepts all objects that ar

Answer 1

The key link you want to read is http://docs.oracle.com/javase/tutorial/extra/generics/wildcards.html which explains Generic wildcard in detail.

The List is not the same as List. Observe the following

List